C.Eligibletype t = int -> Logtk.Literal.t -> boolEligibility criterion for a literal
val eq : tEquations
val filter : (Logtk.Literal.t -> bool) -> tval pos : tOnly positive literals
val pos_eq : tOnly positive equational literals
val neg : tOnly negative literals
val always : tAll literals
Logical "and" of the given eligibility criteria. A literal is eligible only if all elements of the list say so.